This is the high voltage vaporisation of an Easter Bunny’s aluminium wrapper. If you are sqeamish, look away now. The Easter bunny meets 50,000 A might be a suitable title.
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Here I explore the noble art of making small change with my early coinshrinking efforts.
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Tesla coil in a briefcase. This is my latest easily portable mini coil which gives 2-3 inch sparks. These are great fun and are generally safe due to the low power.
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My first Tesla coil using a neon sign transformer with a ferrite cored secondary giving 2 inch sparks. I developed this idea with an old transformer from a dumpster which in retrospect was an old unpotted NST (neon sign transformer). I used a single static gap with a 12 inch ferrite cored coil of 11 primary and 100 turns secondary giving 2 inch sparks with 26 small ceramic capacitors with 2 strings of 13 x 10 nF at 2.5 kV each. It ran nicely for about 20 years! This photo is a mock up with most of the original parts.
I developed this from my first “Tesla coil” discovery while doing a spark spectroscopy project. Years after I made it I heard that Tesla had beaten me to that discovery by quite a few years! This photo is a mock up with most of the original parts.
It now has new life as a Jacob’s ladder.
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Photo Date: Jan 19, 2003